JPH08302740A - Cabin structure of backhoe - Google Patents

Abstract

PURPOSE: To take a head clearance sufficiently by mounting an open-close window at a place deviated from the upper section of the head of an operator in a roof for a cabin and forming a recessed section, in which the open-close window is housed in a sunk shape so as not to be upwards projected from the top face of the roof. CONSTITUTION: An open-close window 35 is installed at a place deviated from the upper section 41 of the head of an operator. A recessed section 33, in which the open-close window 35 is housed in a sunk shape so as not to be projected to an upper section from the top face of a roof, is formed simultaneously. A driver's seat is arranged to a rear section in a cabin 7, and the open-close window 35 is disposed to the front section of the roof. A cooler device 42 is arranged on the side of the head section 41 of the operator. Consequently, a head clearance is ensured sufficiently by such formation. Accordingly, a space between the driver's seat and an operating device is taken sufficiently and operationability is improved while members can be disposed easily by forming a housing space for the members arranged along posts forming the framework of the cabin 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backhoe cabin structure.

[0002]

2. Description of the Related Art Conventionally, some backhoes have a cabin.

[0003]

The total height of the cabin is limited by the height limitation during transportation of the vehicle. On the other hand, when an opening / closing window is provided on the roof of the cabin for visually recognizing buckets and the like, the opening / closing window projects upward from the upper surface of the roof when mounted on the upper surface of the roof, and the upper end surface of the opening / closing window becomes the upper end surface of the cabin. Therefore, there is a problem that a space between the roof and the operator's head, that is, a so-called head clearance cannot be sufficiently obtained due to the height restriction of the cabin.

Therefore, the present invention has been made in view of the above problems.
An object of the present invention is to provide a cabin structure of a backhoe in which sufficient head clearance can be obtained even if an opening / closing window is provided.

[0005]

The technical means taken by the present invention to achieve the above-mentioned object is to provide a backhoe provided with a cabin 7 at a position where a roof 28 of the cabin 7 is located above the operator's head. The point is that an opening / closing window 35 is provided, and a recess 33 is formed to store the opening / closing window 35 in a recessed manner so as not to project upward from the upper surface of the roof 28.

Further, it is preferable that the driver's seat 27 is arranged at the rear of the cabin 7, the opening / closing window 35 is arranged at the front of the roof 28, and the cooler device 42 is arranged at the side of the operator's head. Further, a cover member 44 extending in the vertical direction of the support column 43 is detachably provided on the indoor side of the support column 43 that constitutes the framework of the cabin 7, and the cover member 44 and the support column 4 are provided.
It is preferable to form a storage space C for the members arranged along the support column 43 with the storage space C.

[0007]

When the opening / closing window 35 is provided on the roof 28,
The opening / closing window 35 is provided at a position off the operator's head, and a recess 33 for housing the opening / closing window 35 in an immersive manner so as not to project upward from the upper surface of the roof 28 is provided in the roof 2.
By forming it in No. 8, a sufficient head clearance is secured.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 2 and 3 show the overall configuration of the backhoe 1,
The backhoe 1 is mainly composed of a body 2 and an excavator 3. The machine body 2 is composed of a rubber crawler type traveling device 4 and a swivel base 5 supported on the upper part of the traveling device 4 so as to be freely swiveled around a vertical axis. Further, a dozer 6 is provided in the front part of the traveling device 4, a cabin 7 is provided on the front left side of the upper part of the swivel base 5, and the excavation device 3 is arranged on the right side of the cabin 7. .

The excavator 3 comprises a boom 8, an arm 9 and a bucket 10. The boom 8 includes a first boom member 8a whose lower side is supported by the swivel 5 so as to be rotatable about its left and right axes, and a second boom member pivotally connected to the upper portion of the first boom member 8a so as to be swingable left and right. 8b and a support bracket 8c pivotally connected to the upper part of the second boom member 8b so as to be swingable left and right. A boom cylinder 11 is provided between the first boom member 8a and the swivel base 5.
The boom 8 is vertically swung by the expansion and contraction of the boom cylinder 11.

The upper end of the arm 9 is supported on the upper part of the support bracket 8c so as to be rotatable around the left and right axes.
The arm cylinder 12 interposed between the upper part of the and the support bracket 8c is expanded and contracted to swing. The bucket 10 is supported by the lower part of the arm 9 so as to be rotatable about the left and right axes, and is driven by the bucket cylinder 13 interposed between the bucket 10 and the upper part of the arm 9 to be swung in and swung.

First boom member 8a and support bracket 8c
A link link 14 is provided between the link link 14 and
And the first boom member 8a, the second boom member 8b, and the support bracket 8c constitute a parallel four-link structure, and the hydraulic cylinder 15 interposed between the first boom member 8a and the second boom member 8b serves as a first link. By swinging the two boom members 8b, the arm 9 and the bucket 10 can be moved in parallel in the left-right direction.

The swivel base 5 has a substantially circular shape in which a front portion is cut out in a plan view, and a fuel tank 16 and cylinders are provided on the right side of the boom 8 supporting portion on the swivel base 5. And an oil tank 17 for a hydraulic motor, which is a drive source of the traveling device 4, and the like.
8 and a radiator 19 are arranged, and the fuel tank 16, the oil tank 17, the engine 18, the radiator 19 and the like are covered with a bonnet 20.

As shown in FIGS. 1 and 4 to 7, the cabin 7 has a windshield 21 on a front panel 21.
a is provided, side glasses 22a and 23a are provided at the rear portions of the right side panel 22 and the left side panel 23, respectively, rear glass 24a is provided at the rear panel 24, and the left side panel 23 protrudes from the swivel range of the swivel base 5. This left side panel 23 is curved so that there is no
A door 25 slidable back and forth along the curved surface is provided at the front part of the. The lower surface is open downward.

The front portion of the cabin 7 (the windshield 22
As shown in FIG. 5, a steering device 26 including operating levers for operating each cylinder and a hydraulic motor is disposed in the rear of a), and a driver seat 27 is disposed behind the steering device 26. The control device 26 and the driver's seat 27 are fixed on the swivel base 5. The right side panel 2 of the cabin 7
At the lower part of 2, the support plate 29 which is erected on the swivel base 5 is installed.
A bolt insertion hole 30 for fixing the bolt to the
A support frame 3 fixed to the swivel 5 is provided on the rear right side of the lower surface.
1 (see FIG. 3) is fixed to the mounting plate 32.

As shown in FIGS. 1 and 8, on the front right side of the upper surface of the roof 28 of the cabin 7, there is formed a recess 33 which is recessed below the upper surface of the roof 28. In addition to being formed in an open shape, a rectangular opening 34 is formed on the bottom surface thereof, and the opening 34 is openably and closably covered by an opening / closing window 35. Opening window 3
5 is stored in a recess 33 so as not to project upward from the upper surface of the roof 28. The opening / closing window 34 is mainly composed of a window frame 36 corresponding to the periphery of the opening 34 and a transparent glass 37 fitted in the window frame 36.
The position or state of 0 can be visually confirmed.

The left side of the window frame 36 is swingably attached to the bottom of the recess 33 by a pair of front and rear hinges 38, and the right side of the window frame 36 is detachably engaged with the bottom side of the recess 33 by a lock member. It can be stopped. A gas spring 40 is interposed between a left and right midway portion of the support member 39 that crosses the opening portion 34 in the left-right direction and the left side of the window frame 35, and the opening / closing window 35 is opened (shown by a virtual line in FIG. 8). It is supported.

In FIG. 1, reference numeral 41 indicates the position of the head of the worker sitting in the driver's seat 27.
A cooler device 42 having an evaporator, a blower, and the like housed in a case is arranged on the left side of the cooler device 4.
2 is attached and fixed to the attachment member fixed to the lower surface side of the roof 28 with screws or the like. As shown in FIG. 9, a hollow rear support column 43 that forms the framework of the cabin 7 is provided in the vertical direction at the corner on the left side of the rear of the cabin 7, and the vertical direction is provided inside the cabin of the rear support column 43. Sheet metal interior cover 4 formed in a curved plane cross section
4 is detachably attached and fixed by a bolt 45, and a storage space C between the rear support column 43 and the interior cover 44.
In addition, a hose (or piping) 46 for the cooler device 42, a wire harness 47, and the like can be stored.

As a result, the hose 46 extends from the roof 28 side to the inside of the cover body 21 that covers the engine 18 and the like.
When arranging the wire harness 47 and the like, the work is very simple as compared with the case of passing the inside of the rear support column 43. The hose 46, the wire harness 47, etc. are supported at appropriate positions in the vertical direction by a support member provided inside the cabin of the rear column 43.

FIG. 10 shows another example of the inner cover 44, which is made of resin and is elastically deformable. Further, protrusions 48 are formed on both sides of the interior cover 44 at intervals in the vertical direction, and the protrusions 48 are fitted into locking holes of support walls 49 provided on both sides of the rear support column 43. By the interior cover 44
Are configured to be attached and fixed.

[0020]

According to the present invention, the opening / closing window 3 is formed on the roof 28.
5 is provided, the opening / closing window 35 is provided at a position off the operator's head, and a concave portion 33 is formed in the roof 28 so as to immerse the opening / closing window 35 so as not to project upward from the upper surface of the roof 28. As a result, a sufficient head clearance can be secured.

Further, the driver's seat 27 is arranged in the rear part of the cabin 7, the opening / closing window 35 is arranged in the front part of the roof 28, and further, when the cooler device 42 is installed in the cabin 7, the operator's head side By arranging the cooler device 42 in the vehicle, a sufficient head clearance can be secured, and in comparison with arranging the cooler device in the rear of the driver's seat 27, a sufficient space can be secured between the driver's seat 27 and the control device. It is possible to improve the operability.

Further, a cover member 44 extending in the vertical direction of the support column 43 is detachably provided on the indoor side of the support column 43 constituting the frame of the cabin 7, and the support column 43 is provided between the cover member 44 and the support column 43. By forming the accommodation space C for the members arranged along the columns, the members arranged along the columns 43 can be easily arranged.

[Brief description of drawings]

FIG. 1 is a plan view of a cabin.

FIG. 2 is an overall side view of a backhoe.

FIG. 3 is an overall plan view of a backhoe.

FIG. 4 is a front view of the cabin.

FIG. 5 is a left side view of the cabin.

FIG. 6 is a right side view of the cabin.

FIG. 7 is a rear view of the cabin.

8 is a sectional view taken along the line AA of FIG.

9 is a sectional view taken along the line BB of FIG.

FIG. 10 is a plan sectional view showing another example of the interior cover structure.

[Explanation of symbols]

 7 Cabin 28 Roof 33 Recess 35 Opening / closing window

Claims (3)

[Claims] 1. A backhoe provided with a cabin (7), wherein a roof (28) of the cabin (7) is provided with an opening / closing window (35) at a position outside the operator's overhead, and the opening / closing window (35). A cabin structure for a back hoe, characterized in that a recess (33) for accommodating the above is formed so as not to project upward from the upper surface of the roof (28). 2. A driver's seat (2) at the rear of the cabin (7).
7. The backhoe according to claim 1, further comprising: an opening / closing window (35) arranged at a front portion of the roof (28) and a cooler device (42) at a side of the operator's head. Cabin structure. 3. A cover member (44) extending in the vertical direction of the support column (43) is detachably provided on the indoor side of the support column (43) constituting the frame of the cabin (7). The cabin structure of the backhoe according to claim 1 or 2, wherein a storage space (C) for a member arranged along the column (43) is formed between the column and the column (43).